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PtichkaEL [24]
3 years ago
15

What is 2.5/10 (fraction) simplified?

Mathematics
2 answers:
Sidana [21]3 years ago
8 0

Answer:

\frac{1}{4}

Step-by-step explanation:

\frac{2.5}{10} =2\frac{1}{2} /10=\frac{5}{2} /10=\frac{5}{2} *\frac{1}{10}=\frac{1}{4}=0.25

sladkih [1.3K]3 years ago
5 0

Answer:

-1

—— = -0.25000

 4            

Step-by-step explanation:

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1. A boat is 18 ft away from a point perpendicular to the shoreline. A person stands at a point down the shoreline so that a 68°
slega [8]

Answer:

19.4 feet

Step-by-step explanation:

When calculating distances using perpendicular angles, we use trig functions such as Sin, Cos, and Tan.

  • Sine is defined in a perpendicular triangle as the ratio of the opposite side to the angle over the hypotenuse.
  • Cosine is defined in a perpendicular triangle as the ratio of the adjacent side to the angle over the hypotenuse.
  • Tangent is defined in a perpendicular triangle as the ratio of the opposite side over the adjacent side.

Because our angle and know side value are across from each other and we need to know the hypotenuse, we chose to use Sine.

We set up the equation sin (68) = \frac{18}{h}.

We isolate h by multiplying h across the equal sign and dividing sin (68) across as well. sin (68) = \frac{18}{h}\\hsin (68) = \frac{18}{h}*h\\hsin (68) = 18\\\frac{hsin (68)}{sin (68)} =\frac{18}{sin (68)} \\

And finally we have h=\frac{18}{sin (68)}. We input to calculator.

h=\frac{18}{0.92718} \\h=19.4 feet

See the attached picture below showing the shore with the boat out at sea and the position of the person.


8 0
3 years ago
Solve each equation 11.3 - 7.2f = -3.82
Tema [17]
11.3-7.2f = -3.82
-11.3 -11.30
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-7.2f = -15.12
____ _____
-7.2 -7.2
f = 2.1
6 0
3 years ago
I need help answering this question..​
Irina-Kira [14]

Answer:

x=3

Step-by-step explanation:

Given: 15=7x-6

To solve this equation, we need to isolate x on one side of the equation algebraically. I see that we have like terms, but they are on opposite sides of the equal sign. Let's add 6 to both sides.

21=7x

To isolate x, divide both sides by 7.

x=3

7 0
2 years ago
Using the frequency table below ​
Andrews [41]

Answer:

50%

Step-by-step explanation:

if you look below girls (in total) bought 100 pepsi colas and thats half of the total (200)

6 0
3 years ago
Simplify the radical expression -21√27x^9
padilas [110]
-root 3*63x^2 is the answer you want
6 0
3 years ago
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